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![Thomas Goepfert](https://secure.gravatar.com/avatar/7f624c3d4772cb0cc11eb625c7ad8830?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Thomas Goepfert
Front End Web Development Techdegree Student 6,124 PointsWhy won't this work?! Trying to combine the three Math objects into a single function. https://w.trhou.se/ds5mvibg4k
2 Answers
![Emmanuel C](https://secure.gravatar.com/avatar/3f7b0ec17ae1d78bd03901ad5a10abd2?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Emmanuel C
10,636 PointsUsing rgb for background color requires 3 numbers passed in as the red, green, and blue values. However you are only passing in 1 number. So one way to do it using the function you created would be something like...
var html = "";
function rgb () {
return Math.floor(Math.random() * 256);
}
for ( var i = 1; i <=10; i += 1 ) {
var rgbColor = "rgb(" + rgb() + "," + rgb() +","+ rgb()+")";
html += '<div style = "background-color:' + rgbColor + ';"></div>';
}
document.write(html);
This way each red,green, and blue value is generated by your rgb function. I would suggest naming your function something different as rgb() is already used by css, and may seem a bit confusing as they are doing different things.
![Thomas Goepfert](https://secure.gravatar.com/avatar/7f624c3d4772cb0cc11eb625c7ad8830?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Thomas Goepfert
Front End Web Development Techdegree Student 6,124 PointsI think that makes sense :) Thank you!